The 2006 International Energy Conservation Code (IECC) envelope requirements are not coupled to the home''s glazing area percentage. A home with modest glazing area, say 13% of
floor area, will likely require a more efficient envelope for 2006 IECC compliance. Conversely, a home with larger glazing area, say 20% of floor area, may achieve 2006 IECC compliance with less insulation.

The 2006 IECC also implemented a new climate zone system. The system introduced more homogeneity across climates, resulting in less variation in the envelope requirements from location to location. Therefore, some locations have slightly different (higher or lower) efficiency requirements under the 2006 IECC than under the previous codes.

A study of U.S. architects, electrical engineers, lighting designers, and building contractors and their attitudes and compliance rates; sponsored by the Architectural Products Magazine and the Lighting Controls Association. The purpose of the study was to discover to what extent commercial energy codes are being implemented and enforced.

This document, concerning residential building codes is an action issued by the Department of Energy. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

This report documents the technical analysis used to evaluate whether residential buildings constructed to meet the requirements of the 2015 IECC would result in energy efficiency improvements over residential buildings constructed to meet the requirements of the previous edition, the 2012 IECC.

This report documents the technical analysis used to evaluate whether residential buildings constructed to meet the requirements of the 2015 IECC would result in energy efficiency improvements over residential buildings constructed to meet the requirements of the previous edition, the 2012 IECC. PNNL considered all code change proposals approved for inclusion in the 2015 IECC during the ICC code development cycle2, and evaluated their combined impact on a suite of prototypical residential building energy models across all U.S. climate zones.

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

The ASHRAE Standard 90.1 prototype building models were developed by Pacific Northwest National Laboratory in support of the U.S. Department of Energy's (DOE's) Building Energy Codes Program. These prototype buildings were derived from DOE's Commercial Reference Building Models. This suite of ASHRAE Standard 90.1 prototype buildings covers all the Reference Building types except supermarket, and also adds a new building prototype representing high-rise apartment buildings.The prototype models include 16 building types in 17 climate locations for ASHRAE Standards 90.1-2004, 90.1-2007, 90.1-2010, and 90.1-2013. This combination leads to a set of 1088 building models (in EnergyPlus Version 8.0). Also included is a scorecard for each prototype building. The scorecard is a spreadsheet that summarizes the building descriptions, thermal zone internal loads, schedules and other key...

AreaCalc is a tool to simplify the process of calculating the building areas needed to demonstrate energy code compliance. A spreadsheet-like interface is used to calculate window, door, skylight, roof, wall, and floor areas. These areas can then be transferred directly into REScheck™ where the code compliance results for those assemblies can be displayed.

This toolkit was developed by the U.S. Department of Energy’s (DOE) Building Energy Codes Program (BECP) for use by states, municipalities, energy code advocates, policymakers, stakeholders, and all other groups with a vested interest in energy code adoption.

This toolkit provides information and resources to help guide adopting authorities through the adoption process and setting minimum requirements for new construction.

This toolkit provides some insight into how the adoption process may influence the residential and commercial build communities.

The compliance toolkit describes the steps that should be taken by the build community to make sure that their buildings meet the requirements of the energy codes in effect where the buildings are being built and that the building designs are well documented so that the enforcement community can quickly and easily determine if the building meets the requirement of the energy code.

This toolkit describes the steps that should be taken by the build community to make sure that their buildings meet the requirements of the energy codes in effect where the buildings are being built and that the building designs are well documented so that the enforcement community can quickly and easily determine if the building meets the requirement of the energy code.

The U.S. Department of Energy’s (DOE's) Building Energy Codes Program (BECP) developed this toolkit to help the enforcement community achieve higher levels of compliance with building energy codes.

Although this toolkit is not intended for use by designers, developers, home owners or renters, building owners, or building operators, it may provide those individuals some insight into the issues facing the enforcement community.

Buildings account for almost 40% of the energy used in the United States and, as a direct result of that use, our environment and economy are impacted. Building energy codes and standards provide an effective response. The Building Energy Codes Program designed the Adoption, Compliance, and Enforcement (ACE) Learning Series for those in the building industry having the greatest potential to influence the adoption of and compliance with building energy codes and standards. Each toolkit in the ACE Learning Series delivers essential information to enable designers, specifiers, builders, building owners, policy makers, code officials, and others involved in building design and construction to understand the important role building energy codes play in helping us all address our energy, economic, and environmental challenges.

This report documents the progress indicator (PI) process and analysis that Pacific Northwest National Laboratory (PNNL) developed to evaluate the potential energy savings from the application of ASHRAE Standard 90.1-2010 to building design and construction compared to the application of ASHRAE Standard 90.1-2004. The report describes PNNL’s EnergyPlus simulation framework, and the building prototype simulation models. The combined upgrades from ASHRAE Standard 90.1 -2004 to ASHRAE Standard 90.1-2010 are described, and consist of a total of 153 approved addenda (44 addenda to ASHRAE Standard 90.1-2007 and 109 addenda to ASHRAE Standard 90.1-2010). PNNL reviewed and considered all 153 addenda for quantitative analysis in the PI process. Fifty-three of those addenda are included in the quantitative analysis. This report provides information on the categorization of all of the addenda, a summary of the content, and a more in-depth explanation of the impact and modeling of the...

This document, concerning Activities and Methodology for Assessing Compliance with Building Energy Codes, is an action issued by the Department of Energy. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

[6450-01-P]DEPARTMENT OF ENERGYOffice of Energy Efficiency and Renewable Energy[Docket No. EERE-2013-BT-BC-0036]Activities and Methodology for Assessing Compliance with Building Energy CodesAGENCY: Office of Energy Efficiency and Renewable Energy, Department of Energy.ACTION: Notice of reopening of public comment period.

The Advanced Energy Design Guides (AEDGs) are a series of publications designed to provide recommendations for achieving energy savings over the minimum code requirements of ASHRAE Standard 90.1. This is the first step in the process toward achieving a net zero energy building—defined as a building that, on an annual basis, draws equal or less energy from outside resources than it provides using on-site, renewable energy sources. The guides have been developed in coordination with the following organizations: the American Institute of Architects, the Illuminating Engineering Society of North America, the U.S. Green Building Council, and the U.S. Department of Energy. The New Building Institute participated in the development of the initial guide.

More information on the AEDGs may be found on the Building Technologies Office Commercial Buildings website.

Eliminating unnecessary wood framing within walls can increase the thermal efficiency of the wall system. Less framing allows more insulation to be installed and also eliminates hot and cold spots (from thermal bridging through the frame) within the wall system.

Many homes are being constructed with unfinished basements to reduce initial costs. In most cases, the homeowner eventually finishes the basement for additional living space by installing basement wall insulation. Because most basements are eventually occupied, the advantages and disadvantages of conditioning the basement should be thoroughly reviewed prior to permitting and construction.

Traditional crawlspace designs include passive foundation-wall vents that are supposed to let moisture and contaminants escape outside. Yet field research shows that wall vents may make moisture problems worse.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on cool roofs, which are recommended for metal building roofs and roofs with insulation entirely above deck.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on heating and cooling system design loads for the purpose of sizing systems and equipment should be calculated in accordance with generally accepted engineering standards and handbooks such as ASHRAE Handbook--Fundamentals.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on expanded recommendations for daylighting controls; photo sensor placement; calibration and commissioning; daylight levels.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on glazing; glare and contrast; window design and placement.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on visual light transmission; window and office placement; glazing; etc.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on ductwork distribution; duct insulation; duct sealing and leakage; fan motors

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on exterior lighting power; decorative façade lighting; sources.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on mass floors; steel joist or wood frame floors; slab-on-grade floors.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on lighting walls and ceilings; task lighting; reflectances; lamps and ballasts; occupancy sensors; multi-level switching; electric lighting and daylight controls; exit signs.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on the 0.9 W/ft2 foot goal for lighting power which represents an average lighting power density for the entire building. An example design describes one way (but not the only way) that this watts-per-square-foot limit can be met.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on moisture control and air infiltration control.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on noise path for heating, ventilation, and air conditioning units.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on insulation entirely above-deck; metal buildings; attics and other roofs; single-rafter roofs.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on service water heating types; sizing; equipment efficiency; location; pipe insulation.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on testing, adjusting, and balancing; heating sources; filters.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on ventilation air; exhaust air; control strategies; carbon dioxide sensors; economizers.

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on mass walls; metal building, steel framed, wood frame and other walls

The Advanced Energy Design Guide (AEDG) for Small Office Buildings, 30% series, seeks to achieve 30% savings over ASHRAE Standard 90.1-1999. This guide focuses on improvements to small office buildings, less than 20,000ft2. The recommendations in this article are adapted from the implementation section of the guide and focus on thermal zones and zone temperature control.

This Guide is designed to assist state and local code jurisdictions in achieving statewide compliance with the 2009 International Energy Conservation Code (IECC) for residential buildings and ANSI/ASHRAE/IESNA Standard 90.1-2007 for commercial buildings.

In response to the U.S. Department of Energy's July 20, 2011 notice of determination in the Federal Register regarding ANSI/ASHRAE/IESNA Standard 90.1-2007, Alabama certifies that it has reviewed and adopted the provisions of its Alabama Energy and Residential Code to include the requirement for non-state-funded buildings to comply with the 2009 International Energy Conservation Code, and by reference ASHRAE 90.1-2007.

In response to the U.S. Department of Energy's July 20, 2011 notice of determination in the Federal Register regarding the 2009 International Energy Conservation Code, Alabama certifies that it has reviewed and adopted the provisions of its Alabama Energy and Residential Code to include the requirement for residential buildings to comply with the 2009 International Residential Code, including the Energy Chapter with amendments.

This document is a list of Alaska-specific amendments to the 2009 International Energy Conservation Code, adopted by the Alaska Housing Finance Corporation (AHFC) on March 9, 2011. It is meant to be read in conjunction with the 2009 IECC and ASHRAE Standard 62.2-2010 which may be purchased at local bookstores or online. These amendments comprise both the residential and commercial Building Energy Efficiency Standards (BEES) for AHFC-funded residential mortgage loans and energy rebates, and energy retrofits of public buildings. These amendments supplant the BEES amendments to the 2006 IECC for residential projects as adopted on June 17, 2009, and include the amendments previously made to the 2009 IECC known as the “Commercial BEES.”

The purpose of this study is to quantify the energy code adoption rate by local jurisdictions from a sample set of 21 states. Some of the states within this sample have statewide energy codes, while others do not. Using construction starts and weighting results by localities that have or have not adopted energy codes, the findings can suggest a means of identifying which states have “effectively” adopted state-wide codes through local adoption and enforcement.

The U.S. Department of Energy (DOE) has established ambitious goals to improve the energy efficiency requirements of the International Energy Conservation Code (IECC) for residential buildings. DOE has established near- and long-term goals of 30% and 50% energy efficiency improvements, respectively, compared to the 2006 IECC.

This report presents DOE’s approach to calculating residential energy consumption for the purpose of estimating energy savings attributable to improvements in the code. This approach is then used to estimate the national average energy savings, relative to the 2006 IECC, resulting from the proposed improvements DOE submitted and supported for the 2012 IECC. DOE estimates a total reduction in energy use of 30.6% for the projected requirements of the 2012 IECC as compared to the 2006 IECC, assuming the use of the primary compliance option that involves standard-efficiency equipment. Were the high-equipment efficiency option used, the projected...

A final qualitative analysis of all addenda to ASHRAE Standard 90.1-2007 that were included in ASHRAE Standard 90.1-2010 was conducted. All 109 addenda processed by ASHRAE in the creation of ASHRAE Standard 90.1-2010 from ASHRAE Standard 90.1-2007 were evaluated by the U.S. Department of Energy (DOE) for their impact on energy efficiency. DOE determined whether each addendum would have a positive, neutral, or negative impact on overall building efficiency.

The U.S. Department of Energy (DOE) conducted a final quantitative analysis to assess whether buildings constructed according to the requirements of ASHRAE Standard 90.1-2010 would result in energy savings compared with buildings constructed to ASHRAE Standard 90.1- 2007. The final analysis considered each of the 109 addenda to ASHRAE Standard 90.1-2007 that were included in ASHRAE Standard 90.1- 2010. All 109 addenda processed by ASHRAE in the creation of ASHRAE Standard 90.1-2010 from ASHRAE Standard 90.1-2007 were reviewed by DOE, and their combined impact on a suite of 16 building prototype models in 15 ASHRAE climate zones was considered. Most addenda were deemed to have little quantifiable impact on building efficiency for the purpose of DOE’s final determination. However, out of the 109 addenda, 34 were preliminarily determined to have a measureable and quantifiable impact.

This report provides the quantitative analysis to assess whether buildings constructed according to the requirements of ANSI/ASHRAE/IES Standard 90.1-2013 would result in improved energy efficiency in commercial buildings. The analysis considered each of the addenda to Standard 90.1-2010 that were included in Standard 90.1-2013.

This report provides the qualitative analysis of all addenda to ANSI/ASHRAE/IES1 Standard 90.1-2010 (referred to as Standard 90.1-2010 or 2010 edition) that were included in ANSI/ASHRAE/IES Standard 90.1-2013 (referred to as Standard 90.1-2013 or 2013 edition). All addenda in creating Standard 90.1-2013 were evaluated for their projected impact on energy efficiency. Each addendum was characterized as having a positive, neutral, or negative impact on overall building energy efficiency.

This report provides the qualitative analysis of all addenda to ANSI/ASHRAE/IES1 Standard 90.1-2010 (referred to as Standard 90.1-2010 or 2010 edition) that were included in ANSI/ASHRAE/IES Standard 90.1-2013 (referred to as Standard 90.1-2013 or 2013 edition). All addenda in creating Standard 90.1-2013 were evaluated for their projected impact on energy efficiency. Each addendum was characterized as having a positive, neutral, or negative impact on overall building energy efficiency.

This report provides the quantitative analysis to assess whether buildings constructed according to the requirements of ANSI/ASHRAE/IES Standard 90.1-2013 would result in improved energy efficiency in commercial buildings. The analysis considered each of the addenda to Standard 90.1-2010 that were included in Standard 90.1-2013. PNNL reviewed all addenda included by ASHRAE in creating Standard 90.1-2013 from Standard 90.1-2010, and considered their combined impact on a suite of prototype building models across all U.S. climate zones. . Out of the 110 total addenda, 30 were identified as having a measureable and quantifiable impact.

This report provides a preliminary qualitative analysis of all addenda to ANSI/ASHRAE/IES Standard 90.1-2010 (referred to as Standard 90.1-2010 or 2010 edition) that were included in ANSI/ASHRAE/IES Standard 90.1-2013 (referred to as Standard 90.1-2013 or 2013 edition). All addenda in creating Standard 90.1-2013 were evaluated for their projected impact on energy efficiency. Each addendum was characterized as having a positive, neutral, or negative impact on overall building energy efficiency.

This report provides a preliminary quantitative analysis to assess whether buildings constructed according to the requirements of ANSI/ASHRAE/IES Standard 90.1-2013 would result in improved energy efficiency in commercial buildings. The preliminary analysis considered each of the 110 addenda to Standard 90.1-2010 that were included in Standard 90.1-2013. PNNL reviewed all addenda included by ASHRAE in creating Standard 90.1-2013 from Standard 90.1-2010, and considered their combined impact on a suite of prototype building models across all U.S. climate zones. Most addenda were deemed to have little quantifiable impact on building efficiency for the purpose of DOE’s preliminary determination. However, out of the 110 total addenda, 30 were identified as having a measureable and quantifiable impact.

The United States (U.S.) Department of Energy (DOE) conducted a final quantitative analysis to assess whether buildings constructed according to the requirements of the ASHRAE Standard 90.1-2007 would result in energy savings compared with buildings constructed to ASHRAE Standard 90.1-2004. The final analysis considered each of the 44 addenda to ASHRAE Standard 90.1-2004 that were included in ASHRAE Standard 90.1-2007. All 44 addenda processed by ASHRAE in the creation of Standard 90.1-2007 from ASHRAE Standard 90.1-2004 were reviewed by DOE, and their combined impact on a suite of 15 building prototype models in 15 ASHRAE climate zones was considered. Most addenda were deemed to have little quantifiable impact on building efficiency for the purpose of DOE’s final determination. However, out of the 44 addenda, 9 were preliminarily determined to have measureable and quantifiable impact.

A final qualitative analysis of all addenda to ASHRAE Standard 90.1-2004 that were included in ASHRAE Standard 90.1-2007 was conducted. All 44 addenda processed by ASHRAE in the creation of ASHRAE Standard 90.1-2007 from ASHRAE Standard 90.1-2004 were evaluated by the U.S. Department of Energy (DOE) for their impact on energy efficiency. DOE preliminarily determined whether that addenda would have a positive, neutral, or negative impact on overall building efficiency.

Calculating the areas of the building components (e.g., windows, doors, exterior walls) is easily the most time-consuming step in energy code compliance. This article contains some helpful hints for calculating area takeoffs.

There are many areas for air leakage, including exterior doors, windows, floors, and foundations. In addition, places such as electrical boxes and plumbing fixtures can be areas for air leakage. It is important to seal air leaks before insulating.

This study was undertaken for the Arizona Department of Commerce, who requested the U.S. Department of Energy (DOE) provide technical assistance with regard to identifying the major differences in the model energy codes as they might be applied to various locations in Arizona. This study focuses upon the requirements for commercial (non-residential) buildings in these codes. In both codes, “commercial” buildings include high-rise multi-family buildings as well as traditional “commercial” occupancies such as offices, retail buildings, and assembly buildings.

The State of Arizona, based on the demonstrated adoption and enforcement of the International Energy Conservation Code adn ASHRAE 90.1-2007 at the local jurisdiction level, is on track to meet the intent of the compliance requirements of Title III of the Energy Conservation and Production Act of 1976, as amended concerning energy codes.

In compliance with Title III of the Energy Conservation and Production Act (ECPA) of 1976, as amended, this is to certify that the State of Arkansas has adopted the Arkansas Energy Code for New Building Construction Supplements and Amendments for 2011, which references the 2003 version of the International Energy Conservation Code (IECC) for low-rise residential buildings, as well as ASHRAE 90.1-2007 for nonresidential buildings.

This document, concerning commercial building codes is an action issued by the Department of Energy. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

This worksheet aggregates the results of building energy simulations used in support of the U.S. Department of Energy's determination regarding whether ASHRAE Standard 90.1-1999 will improve energy efficiency in commercial buildings. This determination is required by Section 304 of the Energy Conservation and Production Act.

This worksheet aggregates the results of building energy simulations used in support of the U.S. Department of Energy's determination regarding whether ASHRAE Standard 90.1-2004 will improve energy efficiency in commercial buildings. This determination is required by Section 304 of the Energy Conservation and Production Act.

Automatic shutoff capability for all interior building lighting (with exceptions) is required by ASHRAE Standard 90.1-2007 (as well as previous versions back to 1999) and the 2009 International Energy Conservation Code (including versions back to 2003) for buildings over 5,000ft2.

This report described the results of a two-year Northwest Energy Efficiency Alliance study intended to improve understanding of the new commercial building stock in the Pacific Northwest region. It provided a new regional baseline for practices in commercial buildings constructed between 2002 and 2004 and compared those practices with previous baseline and code compliance studies conducted from 1996 to 1998. The study also looked at changes in design professionals' attitudes toward energy efficiency across the same periods.

Residential basement insulation levels should be selected in accordance with the International Energy Conservation Code, or the local energy code. Be sure to insulate both the masonry and stud walls of daylight basements.

The U.S. Department of Energy (DOE) recognizes the enormous potential that exists for improving the energy efficiency, safety and comfort of homes. The 2012 International Energy Conservation Code (IECC) sets the bar for energy efficiency, and air sealing requirements are one of the key provisions.

This guide is a resource for understanding the air leakage requirements in the 2012 IECC and suggestions on how these measures can be met. It also provides information from Building America’s Air Sealing Guide, best Practices and case studies on homes that are currently meeting the provisions. The 2012 IECC and a few International Residential Code requirements are referenced throughout the guide.

The guide includes practical plan review and inspection resources, including the U.S. Department of Energy Building Energy Codes Program's REScheck™ and COMcheck™ quick reference guides, case studies, and sample inspection checklists; as well as excerpts from International Code Council's commentaries, workbooks, and code companion materials.

This collection also includes many other helpful items and points to further resources available on the web. Residential and commercial building officials can easily add state and local guidance in order to use this binder as a one-stop resource to support compliance in the field.

In order to provide a basic introduction to the varied and complex issues associated with building energy codes, the U.S. Department of Energy’s Building Energy Codes Program, with valued assistance from the International Codes Council and ASHRAE, has prepared Building Energy Codes 101: An Introduction. This guide is designed to speak to a broad audience with an interest in building energy efficiency, including state energy officials, architects, engineers, designers, and members of the public.

A study funded by the North American Insulation Manufacturers Association to identify "the best practices in energy code support, compliance, and enforcement, and...[to promote and replicate] those best practices in other municipalities across Arizona."

Commercial and residential buildings account for approximately 41% of all energy consumption and 72% of electricity usage in the United States. Building energy codes and standards set minimum requirements for energy-efficient design and construction for new and renovated buildings, assuring reductions in energy use and greenhouse gas emissions over the life of buildings. The U.S. Department of Energy (DOE), through the Building Energy Codes Program (BECP or the Program), supports the improvement of energy efficiency in buildings.

BECP periodically assesses the impacts of its activities by estimating historical and projected energy savings, consumer savings, and avoided emissions. The Pacific Northwest National Laboratory (PNNL) conducted the codes benefits assessment in support of the BECP. Underlying the assessment is a series of calculations that estimate and compare energy savings under two scenarios: "with BECP" and "without BECP." The analysis covers the years 1992-2040...

This guide provides key information to policy makers on energy codes and standards and offers guidance on how policy makers can support the creation of statewide energy efficiency goals and standards. In addition, this guide instructs policy makers on how they can:

This guide provides key information on energy codes tailored for architects and provides guidance on how they can support the adoption of new or updated energy codes and the resources needed to ensure compliance with what is adopted. The guide also includes information on the importance of architects in the development and compliance verification processes; information on the interface between codes and the design process; design and compliance tools; information on building construction and commissioning, and many other resources that are key to helping architects understand the important role energy codes through the design process play in addressing our energy, economic and environmental challenges.

This document is to be used to guide the efforts associated with conducting evaluations of California’s energy efficiency programs and program portfolios launched after December 31, 2005, and includes the Codes and Standards Program Evaluation Protocol, which is designed to guide evaluation approaches for codes and standards programs.

This document presents a consistent, systemized, cyclic approach for planning and conducting evaluations of California's energy efficiency and resource acquisition programs, and provides valuable information concerning when evaluations should be conducted, the types of evaluation that can be conducted, and a discussion of approaches for conducting those studies.

Insulation should be installed to fill the entire cavity. REScheck™ uses nominal insulation R-values. The assemblies listed in REScheck already have a default value added for standard sheathing (depending on the assembly component).

Older calculation requirements limited REScheck™'s computations for log walls, but standardized calculations have allowed a REScheck to expand (starting with version 3.7.1). The calculations are much more detailed and specific to each wood species. The most noticeable change is an improvement in the calculation accuracy and usability of the software.

The 2009 International Residential Code and International Energy Conservation Code do not permit trade-offs for installing high-efficiency heating, ventilation, and air conditioning equipment—installing a 90%+ furnace as a trade-off for 2" x 4" stud walls with R-13 insulation. The more permanent building insulation and sealing features now take precedence. However, there still remain optional strategies allowing 2" x 4" exterior stud walls.

In an effort to provide high levels of continuing energy code support to Colorado’s 329 code jurisdictions, the Governor’s Energy Office commissioned an independent survey to better understand the types of code assistance desired. The survey was conducted by the International Codes Council between October and December 2008. The collected responses from 174 of Colorado’s code jurisdictions are presented in this report.

The purpose of the Colorado Gap Analysis Report is twofold: 1) document and analyze the strengths and weaknesses of the state’s existing energy code adoption and implementation infrastructure and policies; and 2) recommend potential actions state agencies, local jurisdictions, and other stakeholders can take to achieve 100% compliance with the model energy codes.

The State of Colorado provides the following information to certify compliance with Title III of the Energy Conservation andProduction Act (ECPA) of 1976, as amended. As the U.S. Department of Energy (DOE) recognizes, the State of Colorado, as a long-term "home-rule" state has no statewide jurisdiction for the adoption and compliance with the International Energy Conservation Code (IECC) and ASHRAE 90.1-2007 at the local jurisdiction level. However, the State of Colorado, based on the demonstrated adoption and enforcement of the 2009 IECC and ASHRAE 90.1-2007 at the local jurisdiction level, fully meets the intent of the compliance requirements of the ECPA concerning energy codes.

In addition, the State of Colorado., within its jurisdictional authority, ahs adopted the 2012 IECC for low-rise residential buildings, as well as ASHRAE Standard 90.1-2010 for nonresidential buildings.

You can use COMcheck™ to demonstrate that your commercial or high-rise residential building design complies with the ASHRAE Standard 90.1-2004 and ASHRAE Standard 90.1-2007.

The COMcheck software provides a highly flexible way to demonstrate compliance with minimal input. The envelope section allows tradeoffs between envelope components, including roofs, walls, windows, floors, and skylights. The lighting section enables you to quickly determine if your lighting design meets interior-lighting power limits. The mechanical section enables you to assemble a customized list of code requirements that are applicable to the systems and equipment in your building.

You can use COMcheck™ to demonstrate that your commercial or high-rise residential building design complies with the 2004, 2006, and 2009 editions of the International Energy Conservation Code.

The COMcheck software provides a highly flexible way to demonstrate compliance with minimal input. The envelope section allows tradeoffs between envelope components, including roofs, walls, windows, floors, and skylights. The lighting section enables you to quickly determine if your lighting design meets interior-lighting power limits. The mechanical section enables you to assemble a customized list of code requirements that are applicable to the systems and equipment in your building.

The 2009 International Energy Conservation Code requires openings in the building envelope to be sealed to prevent air leakage into and out of the space, including an air barrier at insulation installations.

A study that assessed the energy-related characteristics of over 160 buildings planned for construction in and after 2001 showed that the majority of newly constructed commercial buildings in the United States already meet or exceed ASHRAE Standard 90.1-1989 standard for envelope requirements.

In supporting state energy code compliance evaluations, the Building Energy Codes Program (BECP) has developed commercial data collection checklists. The checklists are available for use as paper checklists or electronic Microsoft Word® forms.

The BECP also developed an online tool, the Checklist Score + Store. While overall compliance can be determined manually for individual buildings and groups of renovations, this tool provides automated building scores and state-wide consolidation of data. Individual building scores will remain confidential (available only to the state and their contractors), but storing data nationally will shed valuable light on nationwide compliance, as well as changes in compliance over time.